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Class Information
Number: 4/255.11
Name: Baths, closets, sinks, and spittoons > Obstruction remover > Force cup (e.g., a plunger)
Description: Subject matter wherein the apparatus includes a flexible cup that is placed over the opening and manually flexed to agitate fluid to clean or clear the obstruction within or clear the obstruction from the drain pipe of the sink, bath, or flush closet.










Sub-classes under this class:

Class Number Class Name Patents
4/255.12 With one way valve 8


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8650670 Air blasting devices for plumbing purposes to clean, clear, unclog, or unstop drains or pipes Feb. 18, 2014
8510874 Toilet plunger cleaning system Aug. 20, 2013
8418274 Vacuum drainage system for unclogging a clogged drain, drain clean-out device therefor, and method of unclogging a clogged drain Apr. 16, 2013
8307468 Air blasting devices for plumbing purposes to clean, clear, unclog, or unstop drains or pipes Nov. 13, 2012
8250679 Plunger apparatus Aug. 28, 2012
8245329 Air blasting devices for plumbing purposes to clean, clear, unclog, or unstop drains or pipes Aug. 21, 2012
8209790 Combination bathroom plunging and cleaning tool Jul. 3, 2012
8127402 Attachment for clutchingly covering a major portion of a handle of a plunger, enhancing grip of the handle of the plunger, and absorbing shock from repeated thrusts of the plunger Mar. 6, 2012
8104102 Method and apparatus for unclogging a toilet Jan. 31, 2012
8065754 Pole plunger Nov. 29, 2011
8020222 Bag dispensing receptacle for plunging apparatus Sep. 20, 2011
8020223 Bag dispensing receptacle for plunging apparatus Sep. 20, 2011
7908681 Plungers and devices for storing plumbing tools Mar. 22, 2011
7900287 Releasable handle mechanism for a disposable toilet implement Mar. 8, 2011
7765626 Drain-clearing device Aug. 3, 2010
7752684 Combination-cleaning tool and plunger Jul. 13, 2010
7743451 Sanitary cleaning device with disposable cleaning head Jun. 29, 2010
7523510 Sanitary plunger Apr. 28, 2009
7465942 Plungers and devices for storing plumbing tools Dec. 16, 2008
7340783 Compressed air drain opening device Mar. 11, 2008
7328793 Plunger storage unit Feb. 12, 2008
7328792 Toilet plunger cabinet system Feb. 12, 2008
7308728 Toilet cleaning implement Dec. 18, 2007
7299519 Combination toilet plunger and brush Nov. 27, 2007
7281278 Sanitary plunger Oct. 16, 2007
7188377 Hand-operable pump Mar. 13, 2007
7124450 Flushable plunger cover Oct. 24, 2006
7120943 Air-burst drain plunger Oct. 17, 2006
7089605 Telescoping plunger Aug. 15, 2006
7073211 Hydraulic plumber's friend Jul. 11, 2006
7062800 Plunger Jun. 20, 2006
7058993 Flora integrated cover for toilet tools Jun. 13, 2006
7032252 Drain plunger handle Apr. 25, 2006
7017197 Adjustable plunger apparatus Mar. 28, 2006
7013499 Toilet and sink drain plunger Mar. 21, 2006
6922854 Air-burst drain plunger Aug. 2, 2005
6915533 Foot assisted plunger construction Jul. 12, 2005
6898807 Snake plunger May. 31, 2005
6883189 Concealed toilet cleaning system Apr. 26, 2005
6862753 Compressed air drain opening device Mar. 8, 2005
6859949 Toilet plunger apparatus Mar. 1, 2005
6813785 Plunger container Nov. 9, 2004
6804839 Combination toilet brush/plunger apparatus Oct. 19, 2004
6729470 Plunger holder May. 4, 2004
6719134 Toilet plunger storage device Apr. 13, 2004
6701540 Disposable plunger construction Mar. 9, 2004
6647567 Plumbing plunger support and storage device Nov. 18, 2003
6634035 Sink plunger Oct. 21, 2003
6622316 Dripless plunger Sep. 23, 2003
6550074 Air-burst drain plunger Apr. 22, 2003

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